condition mean min max ZT0-3 0.5591065 0.5505445 0.5676685 ZT4-7 1.1289495 1.1289495 1.1289495 ZT8-11 1.14126 1.14126 1.14126 ZT12-15 0 0 0 ZT16-19 0.7976945 0.7976945 0.7976945 ZT20-23 1.20853 1.20853 1.20853